Home / 1,131,619.76-1,561,604.20-622,322.16

Finding the Fourth Proportional to 1,131,619.76, 1,561,604.20 and 622,322.16

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Solution

The fourth proportional to 1,131,619.76, 1,561,604.20 and 622,322.16 is: 858,787.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,619.76 : 1,561,604.20 = 622,322.16 : x
  2. Step 2: Convert to fraction form
    1,131,619.76/1,561,604.20 = 622,322.16/x
  3. Step 3: Cross multiply
    1,131,619.76x = 1,561,604.20 × 622,322.16
  4. Step 4: Simplify right side
    1,131,619.76x = 971,820,898,809.07
  5. Step 5: Solve for x
    x = 971,820,898,809.07/1,131,619.76
  6. Step 6: Final answer
    x = 858,787.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.